(the "d20 System Trademark Logo Guide"), incorporated here by reference.
2. License to use
You are hereby granted the non-transferable, non-exclusive, royalty-free license to use the d20 System trademark logos, the d20 System trademark, and certain other trademarks and copyrights owned by Wizards of the Coast (the "Licensed Articles") in accordance with the conditions specified in the current version of the d20 System Trademark Logo Guide.
3. Agreement not to Contest
By making use of and/or distributing material using the d20 System trademark under the terms of this License, You agree not to contest the ownership of the Licensed Articles.
4. Breach and Cure
In the event that You fail to comply with the terms of this License, You will be considered to be in breach of this License. Wizards of the Coast will attempt to notify you in writing by sending a Registered Letter to the address listed on the most recent Confirmation Card on file, if any. You will have 30 days from the date the notice (the "cure period") to cure the breach to the satisfaction of Wizards of the Coast. If no Confirmation Card is on file, you will be considered to be in breach of this License immediately.
If, at the end of the cure period, the breach is not cured, Wizards of the Coast may terminate this License without further written notice to You.
6. Effects of Termination
Upon termination, You shall immediately stop all use of the Licensed Articles and will destroy any inventory or marketing material in Your possession bearing the d20 System trademark logos. You will remove any use of the d20 System trademark logos from your advertising, web site, letterhead, or any other use. You must instruct any company or individual that You are or become aware of who is in possession of any materials distributed by You bearing the d20 System trademark logos to destroy those materials. You will solely bear any costs related to carrying out this term of the License.
7. Penalty for Failure to Comply with Termination Instructions
If You fail to comply with the Effects of Termination, Wizards of the Coast may, at its option, pursue litigation, for which You shall be responsible for all legal costs, against You to the full extent of the law for breach of contract, copyright and trademark infringement, damages and any other remedy available.
Wizards of the Coast may issue updates and/or new releases of the d20 System trademark logos without prior notice. You will, at the earliest possible opportunity, update all material distributed by You to use the updated and/or new version of the d20 System trademark logos. You may continue to distribute any pre-existing material that bears an older version of the d20 System trademark logo.
9. Changes to Terms of the License
Wizards of the Coast may issue updates and/or revisions to this License without prior notice. You will, at the earliest possible opportunity, conform in all respects to the updated or revised terms of this License. For a period of 90 days You may continue to distribute any pre-existing material that complies with a previous version of the License. Thereafter written consent should be obtained from Wizards of the Coast. Subsequent versions of this License will bear a different version number.
10. Updates of Licensee information
You may transmit an updated version of the "card.pdf" Confirmation Card at any time to Wizards of the Coast.
11. Notices to Licensor:
Wizards of the Coast
c/o Publishing Division
Attn: Roleplaying Games Department
PO Box 707
Renton, WA 98057-0707
12. No maintenance or support
Wizards of the Coast shall have no obligation whatsoever to provide You with any kind of maintenance or support in relation to the d20 System trademark logos.
13. No Warranty / Disclaimer
THE D20 SYSTEM TRADEMARK LOGO FILES ARE MADE AVAILABLE ON AN "AS IS" BASIS. WIZARDS OF THE COAST DOES NOT MAKE ANY REPRESENTATION OR WARRANTY, WHETHER EXPRESS OR IMPLIED, AS TO THE FITNESS FOR A PARTICULAR PURPOSE, USE OR MERCHANTABILITY. WIZARDS OF THE COAST MAKES NO REPRESENTATION OR WARRANTY THAT THE D20 SYSTEM TRADEMARK LOGO FILES ARE ERROR-FREE.